Portal:Biology/Major topics

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General	Life | species | biology
Ecology	Biomass | food chain | indicator species | extinction | habitat | species distribution | Gaia theory
Conservation	Biodiversity | biodiversity hotspot | nature reserve | edge effect | Allee effect | corridor | fragmentation | pollution | invasive species | in situ - ex situ | seedbank | environmental economics
Evolution (Intro)	Natural selection | genetic drift | sexual selection | speciation | mutation | gene flow
Tree of life	Animals | plants | fungi | protists | bacteria | archaea | prokaryote | eukaryote | three-domain system | angiosperms | insects | nematodes | viruses
Development	Tissues | fertilization | embryogenesis | gastrulation | neurulation | organogenesis | differentiation | morphogenesis | metamorphosis | ontogeny
Life cycle	reproduction | ploidy | spermatogenesis | alternation of generations | oogenesis | parasitism | evolution of sex | meiosis | DNA replication
The cell	Cell wall | cell membrane | cytoskeleton | mitochondrion | chloroplast | nucleus | endoplasmic reticulum | Golgi apparatus | cell cycle | mitosis | metabolism | cell signaling | protein targeting
Biochemistry	DNA | RNA | protein | enzyme | protein folding | carbohydrate | lipid | glycolysis | citric acid cycle | electron transport chain | oxidative phosphorylation | photosynthesis | protein structure
Genetics (Intro)	Gene | genome | karyotype | transcription | translation | recombination | chromosome | Mendelian inheritance | phenotype | genotype | epigenetics | splicing | mutation | genetic fingerprint | chromatin | classical genetics | ecological genetics | molecular genetics | population genetics | quantitative genetics
Techniques	Genetic engineering | transformation | gel electrophoresis | chromatography | centrifugation | cell culture | DNA sequencing | DNA microarray | green flourescent protein | vector | Enzyme assay | Protein purification | Western blot | Northern blot | Southern blot | restriction enzyme | polymerase chain reaction | two-hybrid screening
Other fields	Anatomy | astrobiology | botany | bioengineering | bioinformatics | human biology | microbiology | origin of life | paleontology | parasitology | pathology | pharmacology | phylogenetics | physiology | marine biology | systems biology | taxonomy | zoology
Classification of man	Primate | mammal | vertebrate | craniata | chordate | deuterostome | animal
History of biology	Natural history | geography | ecology | molecular biology | evolutionary biology | Great Chain of Being